unable to start webmatrix - webmatrix

Question

I recently installed WebMatrix. When I start the WebMatrix on my machine, it shows me the error and closes. Following are the error details
Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: webmatrix.exe
Problem Signature 02: 7.9.0.0
Problem Signature 03: 4e694933
Problem Signature 04: Microsoft.WebMatrix.Core
Problem Signature 05: 7.9.0.0
Problem Signature 06: 4e69493b
Problem Signature 07: 1544
Problem Signature 08: 24
Problem Signature 09: System.ArgumentException
OS Version: 6.1.7601.2.1.0.256.4
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
hi Justin Thanks for the update. here is the event log you asked for
Log Name:
Application
Source: Application Error
Date: 12/12/2011 11:57:52 AM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: HANU-LPT2.hanusoftware.local
Description:
Faulting application name: WebMatrix.exe, version: 7.1.1307.1, time stamp: 0x4e694933
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0xe0434352
Fault offset: 0x0000b9bc
Faulting process id: 0xd8
Faulting application start time: 0x01ccb8971a1262b8
Faulting application path: C:\Program Files (x86)\Microsoft WebMatrix\WebMatrix.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: 6a9b0c3e-248a-11e1-ab5c-705ab6a78e2c
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2011-12-12T06:27:52.000000000Z" />
<EventRecordID>418956</EventRecordID>
<Channel>Application</Channel>
<Computer>HANU-LPT2.hanusoftware.local</Computer>
<Security />
</System>
<EventData>
<Data>WebMatrix.exe</Data>
<Data>7.1.1307.1</Data>
<Data>4e694933</Data>
<Data>KERNELBASE.dll</Data>
<Data>6.1.7601.17651</Data>
<Data>4e211319</Data>
<Data>e0434352</Data>
<Data>0000b9bc</Data>
<Data>d8</Data>
<Data>01ccb8971a1262b8</Data>
<Data>C:\Program Files (x86)\Microsoft WebMatrix\WebMatrix.exe</Data>
<Data>C:\Windows\syswow64\KERNELBASE.dll</Data>
<Data>6a9b0c3e-248a-11e1-ab5c-705ab6a78e2c</Data>
</EventData>
</Event>

Answer 1

Looks like it's well-known issue:
there is a known issue with Dev 11 Beta and WM 2 Beta. We are
actively working on an update to WM 2 Beta to address this - I
anticipate this will be released early next week (Chris Sfanos, Web
Platform Installer PM)
Recommendation to rollback:
Uninstall Microsoft SQL Server Compact 4.0 SP1 x64 ENU CTP1
Uninstall Web Platform Installer
Uninstall WebMatrix Beta 2
Uninstall IIS 7.5 Express
(If you installed PHP for WebMatrix) Delete the remaining PHP folder under C:\Program Files (x86)\IIS Express
Install Web Platform Installer 3.0 (http://www.microsoft.com/web/downloads/platform.aspx)
Install WebMatrix 1 from the Web Platform Installer 3.0
(If desired) Install PHP for WebMatrix from the Web Platform Installer 3.0
Link: http://forums.iis.net/p/1187677/2015970.aspx

Answer 2

I had the same issue with Webmatrix.
Go to Documents->IISExpress->config folder
Delete the applicationhost.config file and start webmatrix
It should start normally
found the solution on IIS forums

Answer 3

I had issues with my applicationhost.config the bindings that I setup stopped working.
<binding protocol="http" bindingInformation="*:50499:*" />
Had to become, still unsure why
<binding protocol="http" bindingInformation="*:50499:localhost" />